Microstructure evolution and mechanical properties of SiO2f/SiO2 composites joints brazed by bismuth glass

Haohan Wang; Pengcheng Wang; Zhengxiang Zhong; Jian Cao; Junlei Qi

doi:10.1016/j.ceramint.2021.11.132

Microstructure evolution and mechanical properties of SiO_2f/SiO₂ composites joints brazed by bismuth glass

Haohan Wang
, Pengcheng Wang
, Zhengxiang Zhong
, Jian Cao
, Junlei Qi^*

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology
School of Chemistry and Chemical Engineering, Harbin Institute of Technology
Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

To extend the application of the SiO_2f/SiO₂ composites, self-joining process is indispensable. Reliable self-joining of SiO_2f/SiO₂ composites was achieved by Bi₂O₃–B₂O₃–ZnO glass. With a low glass transition temperature, the onset temperature of residual stress is much lower than that of active brazing. In addition, bismuth glass exhibits a good wettability on the surface of SiO_2f/SiO₂ composites. When the joints were brazed at 750 °C/30 min, the average shear strength of the joints reached 21.2 MPa, reaching 77.8% of the shear strength of SiO_2f/SiO₂ composites. This technology can effectively fill the bank of self-joining of SiO_2f/SiO₂ composites.

Original language	English
Pages (from-to)	5840-5844
Number of pages	5
Journal	Ceramics International
Volume	48
Issue number	4
DOIs	https://doi.org/10.1016/j.ceramint.2021.11.132
State	Published - 15 Feb 2022

Keywords

Brazing
Glass
Shear strength
SiO/SiO composites
Wettability

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10.1016/j.ceramint.2021.11.132

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title = "Microstructure evolution and mechanical properties of SiO2f/SiO2 composites joints brazed by bismuth glass",

abstract = "To extend the application of the SiO2f/SiO2 composites, self-joining process is indispensable. Reliable self-joining of SiO2f/SiO2 composites was achieved by Bi2O3–B2O3–ZnO glass. With a low glass transition temperature, the onset temperature of residual stress is much lower than that of active brazing. In addition, bismuth glass exhibits a good wettability on the surface of SiO2f/SiO2 composites. When the joints were brazed at 750 °C/30 min, the average shear strength of the joints reached 21.2 MPa, reaching 77.8\% of the shear strength of SiO2f/SiO2 composites. This technology can effectively fill the bank of self-joining of SiO2f/SiO2 composites.",

keywords = "Brazing, Glass, Shear strength, SiO/SiO composites, Wettability",

author = "Haohan Wang and Pengcheng Wang and Zhengxiang Zhong and Jian Cao and Junlei Qi",

note = "Publisher Copyright: {\textcopyright} 2021",

year = "2022",

month = feb,

day = "15",

doi = "10.1016/j.ceramint.2021.11.132",

language = "英语",

volume = "48",

pages = "5840--5844",

journal = "Ceramics International",

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}

TY - JOUR

T1 - Microstructure evolution and mechanical properties of SiO2f/SiO2 composites joints brazed by bismuth glass

AU - Wang, Haohan

AU - Wang, Pengcheng

AU - Zhong, Zhengxiang

AU - Cao, Jian

AU - Qi, Junlei

PY - 2022/2/15

Y1 - 2022/2/15

N2 - To extend the application of the SiO2f/SiO2 composites, self-joining process is indispensable. Reliable self-joining of SiO2f/SiO2 composites was achieved by Bi2O3–B2O3–ZnO glass. With a low glass transition temperature, the onset temperature of residual stress is much lower than that of active brazing. In addition, bismuth glass exhibits a good wettability on the surface of SiO2f/SiO2 composites. When the joints were brazed at 750 °C/30 min, the average shear strength of the joints reached 21.2 MPa, reaching 77.8% of the shear strength of SiO2f/SiO2 composites. This technology can effectively fill the bank of self-joining of SiO2f/SiO2 composites.

AB - To extend the application of the SiO2f/SiO2 composites, self-joining process is indispensable. Reliable self-joining of SiO2f/SiO2 composites was achieved by Bi2O3–B2O3–ZnO glass. With a low glass transition temperature, the onset temperature of residual stress is much lower than that of active brazing. In addition, bismuth glass exhibits a good wettability on the surface of SiO2f/SiO2 composites. When the joints were brazed at 750 °C/30 min, the average shear strength of the joints reached 21.2 MPa, reaching 77.8% of the shear strength of SiO2f/SiO2 composites. This technology can effectively fill the bank of self-joining of SiO2f/SiO2 composites.

KW - Brazing

KW - Glass

KW - Shear strength

KW - SiO/SiO composites

KW - Wettability

UR - https://www.scopus.com/pages/publications/85119302982

U2 - 10.1016/j.ceramint.2021.11.132

DO - 10.1016/j.ceramint.2021.11.132

M3 - 文章

AN - SCOPUS:85119302982

SN - 0272-8842

VL - 48

SP - 5840

EP - 5844

JO - Ceramics International

JF - Ceramics International

IS - 4

ER -

Microstructure evolution and mechanical properties of SiO_2f/SiO₂ composites joints brazed by bismuth glass

Abstract

Keywords

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